Unlikely metal more effective than stainless steel in killing harmful bacteria.
Frogs were originally imported for human pregnancy testing.
Biologists find that blood-engorged hairs help bats eat.
Researchers see potential for new topical treatment.
Rare fossil with its feathers intact found in Wyoming.
Nanoparticles can prevent bacteria growth on medical equipment.
Water, microbes, soil and plants interact in a setting realistic enough to improve global climate models for years to come.
Bullfrogs' hair cells yield clues on how humans detect faint sounds.
Tiny ball-like particles could someday neutralize venom and bacteria in humans.
A simple breath test could sense when an asthma attack may strike.